Part A
AD5241BRZ1M
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 6341 Stückzahl
- Package
- SOIC-14
- Series
- Datenerfassung
Replacement verdict
Compatible functional replacement candidate
The AD5241BRZ1M and AD5242BR10 are both dual-channel digital potentiometers from Analog Devices with comparable resolution and nonvolatile memory, making the AD5242BR10 a viable functional replacement candidate for the AD5241BRZ1M in many designs. However, the differing nominal resistance values and package options require careful validation against the target application's end-to-end resistance and board layout requirements before substitution.
End-to-End Resistance
Validation required
Channel Count
High match
Interface Type
High match
Package Type
Validation required
Parts at a glance
Part B
AD5242BR10
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 6920 Stückzahl
- Package
- SOIC-16
- Series
- Datenerfassung
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AD5241BRZ1M | AD5242BR10 | Why it matters |
|---|---|---|---|
| Number of Channels | 1 | 2 | Determines how many independent resistance settings can be controlled; a dual-channel part can replace two single-channel devices but not vice versa. |
| End-to-End Resistance | 1 MΩ | 10 kΩ | Sets the nominal resistance range of the digital potentiometer, directly affecting the achievable voltage division and current levels in the application. |
| Interface Type | I²C | I²C | Defines the digital communication protocol used to program the device; matching interface ensures host compatibility. |
| Resolution (Number of Positions) | 256 | 256 | Determines the number of discrete wiper settings and thus the step size of resistance adjustment. |
| Supply Voltage Range | 2.7 V to 5.5 V | 2.7 V to 5.5 V | Specifies the operating voltage window; both parts must be powered within this range for correct operation. |
| Package / Mounting Type | 14-Lead SOIC (Surface Mount) | 16-Lead SOIC (Surface Mount) | Affects PCB footprint and assembly; different pin counts and package sizes prevent direct drop-in replacement. |
| Operating Temperature Range | -40°C to +85°C | -40°C to +85°C | Defines the environmental conditions under which the device is guaranteed to meet specifications. |
| Wiper Resistance (Typical) | 60 Ω | 60 Ω | Adds to the set resistance and affects accuracy, especially at low resistance settings. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD5241BRZ1M | AD5242BR10 |
|---|---|---|
| Supplier | - | Analog Devices Inc. |
| Part Status | Active | Obsolete |
| Taper | Linear | Linear |
| Configuration | Potentiometer | Potentiometer |
| Number of Circuits | 1 | 2 |
| Number of Taps | 256 | 256 |
| Resistance(Ohms) | 1M | 10k |
| Interface | I²C | I²C |
| Memory Type | Volatile | Volatile |
| Voltage - Supply | 2.7V ~ 5.5V, ±2.3V ~ 2.7V | 2.7V ~ 5.5V, ±2.3V ~ 2.7V |
| Features | Selectable Address | Selectable Address |
| Tolerance | -30%, +50% | ±30% |
| Temperature Coefficient(Typ) | 30ppm/°C | 30ppm/°C |
| Mounting Type | Surface Mount | Surface Mount |
| Operating Temperature | -40°C ~ 105°C | -40°C ~ 105°C |
Frequently asked questions
What are the key differences between the AD5241BRZ1M and AD5242BR10?
The AD5241BRZ1M is a single-channel 8-bit digital potentiometer with a 1 MΩ end-to-end resistance, while the AD5242BR10 is a dual-channel 8-bit digital potentiometer with a 10 kΩ end-to-end resistance. The AD5241 offers one digitally controlled variable resistor, whereas the AD5242 provides two independent channels in the same package footprint.
Are the AD5241BRZ1M and AD5242BR10 pin-compatible?
No. Although both are offered in 14-lead SOIC packages, the AD5241 is a single-channel device and the AD5242 is a dual-channel device. Their pin functions and internal terminal connections differ, so they are not direct pin-for-pin replacements. Always verify the pinout in the respective manufacturer datasheets before layout or substitution.
What is the resolution and interface of these digital potentiometers?
Both the AD5241BRZ1M and AD5242BR10 are 8-bit (256-position) digital potentiometers that use a 2-wire I²C-compatible serial interface. They support standard I²C addressing and are designed for volatile wiper setting control.
What are the end-to-end resistance values and tolerances?
The AD5241BRZ1M has a nominal end-to-end resistance of 1 MΩ, while the AD5242BR10 has a nominal end-to-end resistance of 10 kΩ. Both are specified with a resistance tolerance of ±30% maximum over the operating temperature range, as stated in the Analog Devices datasheets.
Can the AD5241BRZ1M be used as a drop-in replacement for the AD5242BR10 in an existing design?
No. The AD5241BRZ1M is a single-channel 1 MΩ device, while the AD5242BR10 is a dual-channel 10 kΩ device. The channel count, resistance value, and internal terminal architecture differ, so a direct drop-in replacement is not possible without redesigning the circuit and validating all parameters against the target application requirements.
What are the typical operating voltage ranges for these devices?
Both the AD5241BRZ1M and AD5242BR10 operate from a single supply voltage range of 2.7 V to 5.5 V, or from dual supplies of ±2.7 V to ±5.5 V, as specified in the Analog Devices datasheets. The digital interface logic levels are compatible with the supply voltage.
What package types are available for the AD5241BRZ1M and AD5242BR10?
The AD5241BRZ1M is available in a 14-lead SOIC package. The AD5242BR10 is also available in a 14-lead SOIC package. Both are offered in the same package outline, but the internal channel configuration and resistance value differ, so they are not interchangeable without circuit modifications.
What are the typical applications for each device?
The AD5241BRZ1M (1 MΩ, single channel) is typically used for low-power trimming, sensor calibration, and applications requiring high resistance values. The AD5242BR10 (10 kΩ, dual channel) is commonly used for dual-channel gain and offset adjustment, audio volume control, and applications requiring two independent variable resistors in a compact footprint.